ai_IgnoreSoundStimulus – Determines whether the
agent ignores all sounds. Visual and tactile stimuli are not affected.

ai_SoundPerception – Determines the degree to
which the agent can hear sounds. A setting of 0 causes the agent to ignore all sounds
(useful for debugging purposes when used in conjunction with ai_DebugDraw). Default
value: 1

ai_EnablePerceptionStanceVisibleRange –
Determines the maximum perception range for AI based on the player's stance.

ai_CrouchVisibleRange – Determines the
perception range for AI agents when the player is crouching and
ai_EnablePerceptionStanceVisibleRange is enabled. Default value: 15.0

ai_ProneVisibleRange – Determines the
perception range for AI agents when the player is prone and
ai_EnablePerceptionStanceVisibleRange is enabled. Default value: 6.0

For the next three variables, if the isAffectedByLight property is true, this determines
the
scaling factor for the AI agent's visual perception range under the LIGHTSPOT lighting
conditions.

ai_SightRangeDarkIllumMod – Has the same effect
as the LIGHTSPOT_DARK anchor type. Default value: 0.5

ai_SightRangeMediumIllumMod – Has the same
effect as the LIGHTSPOT_MEDIUM anchor type. Default value: 0.8

ai_SightRangeSuperDarkIllumMod – Has the same
effect as the LIGHTSPOT_SUPERDARK anchor type. Default value: 0.25